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Патент USA US2412134

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"TCU-Z400
Dec. 3, 1946.
c. L. EKsERGIAN
2,412,134
PROJECTILE
Filed F'Fb.> 12. 1944
7»
'
l
JNVENTOR
CaroluS LrELœerq Lan.
BY
l ATTORNEY
2,412,134
Patented Dec. 3, 1946
UNITED STATES PATENT OFFICE
2,412,134
PROJ ECTILE
Carolus L. Eksergian, Detroit, Mich., assîgnor, by
mesne assignments, to the United States of
America, as represented by the Secretary of
War
Application February 12, 1944, Serial No. 522,037
5 Claims.
(Cl. 60-35.6)
1
2
This invention relates to reaction propulsion
devices, more particularly to projectiles and the
like of the so-called “rocket” type.
Projectiles embodying a casing which encloses
a reaction propulsion charge that discharges pe
ripherally from the casing have previously been
proposed, and the present invention is ydirected
primarily to this type of projectile.
One of the objects of the present invention
Extending axially within the casings 5 and 6
is a tubular member II supported at its forward
end by the nose portion 'I and at its rearward
end by the rearward end of the casing 5, as
indicated in dotted outline in Figure 1.
In accordance with the present invention, a
separate jet or Venturi passage is provided for
each reaction propulsion charge comprised of the
cylindrical elements 9. To this end, a tubular
sleeve I2 surrounds the tube II, and surrounds
the sleeve I2 and secured thereto by silver solder
is to provide an improved nozzle or jet arrange
ment in a rocket type projectile which is eco
nomical to manufacture and in which means is
provided for adjusting the area of the nozzle
I3 or by any other suitable method, are forward
and rearward annular elements I4 and I5, re
passage to provide for desired ranges of the pro
spectively, the element I4 being peripherally
jectile through Variation in the propelling pres
15 threaded to the internal wall of casing 6 and
sure of the exhausting gases.
the element I5 being peripherally threaded to
Another object is to provide an improved multi
the internal wall of casing 5. ‘ The radial walls
jet rocket device in which separate propelling
or webs of the elements I4 and I5 are of spider
charges may be utilized.
formation to provide the element I4 with open
With the above and other objects in View which 20 ings |6 and the element§|5 with openings I'I.
will be 'apparent from the following description
Interposed between the annular elements I4
to those skilled in the art to which the invention
and I5 and surrounding the sleeve I2 is an an
appertains, the present invention consists in cer
nular member I8 having an integral circumfer
tain features of construction and combinations
ential rearwardly and outwardly extending wall
25
of parts to be hereinafter described with refer->
I9. As will be seen in Figure 2, this wall is of
ence to the accompanying drawing, and then
conical formation and projects rearwardly and
claimed.
outwardly between the adjacent spaced ends of
In the drawing which illustrates a suitable
embodiment of the invention:
Figure 1 is a side elevation of the projectile to I"
which the arrangement of the present invention
is applied;
Figure 2 is an enlarged section of that portion
of the projectile which is disposed within broken
outline 2 of Figure 1, and
Figures 3 and 4 are transverse sections respec
tively taken substantially on the lines 3-3 and
4-4 of Figure 2.
Referring to the drawing, the projectile se
lected for illustration comprises a rearward tu
bular casing 5, a forward tubular casing v6 of
greater diameter than the rearward casing 5
and a nose portion 'I which may contain an ex
plosive charge, or ñare or chemical charge and
the like (not shown). Suitable stabilizing fins
. 8 are carried by the trailing end of the casing 5.
Each of the casings contains a reaction pro
pulsion charge in the form of a number of cylilrì
Adrical elements 9 of combustible material. T e
elements '9 are supported in circumferentially
spaced relation on a suitable cage Il) concentri
cally arranged within the casing. The particu
lar manner of supporting the cage I0 forms no
the casings `5 and 6.
`
Threaded to the end of the casing 5 is an an
nular ring 20, and similarly threaded to the end
of the casing 6 is an annular ring 2|. The for- '
ward end of the ring 20 is tapered at 22, as shown
in Figure 22, and this tapered surface 2 together
with the inner surface 23 of the wall IES provides
.a Venturi passage 2-4 communicating with the
easing i5 through the openings I1 for the exhaust
of the products of combustion of the reaction pro
pulsion charge comprised of the rearward ele
ments >9. The inner surface of the ring 2| is also
contoured at 25 `to provide with the outer surface
26 of the conical wall I9 a Venturi passage 2'I in
communication with the casing 6 through the
openings I6 for the exhaust of the products of
combustion of the reaction propulsion charge lo
cated within the casing 6.
There is thus provided continuously annular
Venturi passagesy 24 and 2'I separated by the
single wall |9,the one communicating with one
casing and the other with the other casing.
The annular rings 20 and 2| are threadedly
adjustable on the ends of the casings so that
the areas of the Venturi passages 24 and 26, re
spectively, may be adjusted to provide for a pre
part of the present invention and therefore is
55 determined propelling pressure. Suitable set
not shown in detail.
2,412,134
4
3
screws 28 may be provided to lock the rings 20
ends in sgacednapart relation, each being ar
and 2| in adjusted position.
ranged to contain La combustible reaction pro
pulsion charge, each casing having an axially
It is to be noted that through the medium
apertured element secured within the end thereof
of the annular rings I4 and I5 and the annular
sleeve I2 a rigid connection is provided between OI which is adjacent an end of the other casing,
the adjacent ends of the two casings, despite the
rigid means within said casings rigidly secured
to said apertured elements, whereby .to support
fact that these ends are completely separated.
one casing from the other, and an annular wall
In fact the forward end of the rearward casing
is rigidly supported from the rearward end of
extending at an acute angle to the axis of said
10 casing through the space between said adjacent
the forward casing.
ends in spaced relation with respect to each of
The connection between the twol casings and
the particular construction of the Venturi pas
sage provides an arrangement which, although
simple in construction, can be economically man
ufactured.
said ends, each of said ends and the adjacent
surface of said wall being contoured to deñne a
circumferentially continuous Venturi passage,
4. In a reaction propulsion device, a pair of
coaxial tubular casings having their adjacent
Various changes may be made in the arrange
ment and detailed construction of the parts de
ends in sp
scribed without departing from the 'spirit and
ranged to con`aî'nï'cninbustible reaction pro
substance of the invention, the scope of which
is defined by the appended claims.
What is claimed is:
‘
'
`
1. In a reaction propulsion device, a pair of
coaxial tubular casings having their adjacent
ends in spaced apart relation, each being ar
ranged to \contain aéág‘n’inbnvstuilglîeq reaction pro
pulsion charge each having an axially apertured
elementïë‘ë?‘ïedwithin the end thereof 4which is
adjacent the other casing,? rigid means within
said casings rigidly secured to said apertured ele
ments, whereby to supportv óne casing from the
other, and an annular wall extending at an acute
angle to the axis of said casing through the space
between said adjacent ends in spaced relation
with respect to each of said `ends, said wall pro
vidìng with each of said ends a peripherally con
tinuous discharge passage.
ed apartmrelation, each being ar
pulsion @haargág each having" an axially apertured
elementI :secured within the end thereof which is
adjacent the other casing, rigid means within
said casings rigidly secured to said apertured
elements, whereby to support one casing from
the other, and an annular wall extending at an
acute angle to the axis of said casing through
the space between said adjacent ends in spaced
relation with respect to each of said ends, each
of said adjacent ends having an annular ring
threaded thereto, each of said rings and the ad
jacent surface of said wall being contoured to
define a Venturi passagçè and said rings being
threadably adjustable on said casings to alter
2. In a reaction propulsion device, a pair of
the areas of said Venturi passages whereby to
vary the pressures at which the gases resulting
" from the burning of the propulsion charges will
exhaust from said Venturi passages.
5. In a reactionv propulsion device, a ‘pair of
coaxial tubular casings having their adjacent
ends in spacemapart relation, each being ar
coaxial tubular casings having their adjacent
ends in space
part-relation, each being ar
ranged to contain a combustible reaction :pro
pulsion charge each having >an axially aper
tured element secured within the end thereof
which is adjacent the other casing,vmeans within
said casings rigidly secured vto said apertured
elements to support one casing from the other,
40 ranged to contain a combustible reaction pro
pulsion charge, each casing having an axially
apertured element secured within the end thereof
which is adjacent an end of the other casing, a
member extending between said elements and
‘ being rigidly secured thereto, and a sleeve~like
member surrounding said first mentioned mem
to the axis of said casing through the space be
ber and extending between said elements, said
sleeve-like member having a circumferential an
tween said adjacent ends in spaced relation with
respect to each of said ends, said wall providing
nular wall outwardly therefrom at an acute angle
with each of said ends a peripherally continuous 50 between said adjacent ends, said wall being
discharge passage, said wall extending from be
spaced from both said ends and providing con
tween said apertured elements and preventing
tinuous annular passages therewith, the one for
the discharge of the products of combustion of
the ñow of the products of combustion of the
charge in each casing from entering the other
the charge in one'casing and the other for the
casing.
discharge of the products of combustion of the
charge in the other casing.
3. In a reaction propulsion device, a pair of
coaxial tubular casings having their adjacent
CAROLUS L. EKSERGIAN.
and an annular wall extending at an acute angle
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